Island



(No Model/1 E J NICHOLS TAP AND REAMER WRENCH.

Patented J-an; 8 1895.

INVENTOH la/ZM:

6 A TTOHNEYS.

WITNESSES:

UNlTED STATES PATENT OFFICE.

ELMER J. NICHOLS, OF PA-WTUCK ET, RHODE ISLAND, ASSIGNOR TO THE J. M. CARPENTER TAP AND DIE COMPANY, OF SAME PLACE.

TAP AND REA-MERWRENCH.

SPECIFICATION forming part of LettersPatent No. 532,285, dated January 8, 1895. Application filed June 20. 1894. Serial No. 515,096. (No model.)

To all whom it may concern:

Be it known that I, ELMER J. NICHOLS, or

Pawtucket, in the county of Providence and State of Rhode Island, have invented a new and Improved Tap and Reamer Wrench, of which the following is a full, clear, and exact description.

The object of the' invention is to provide a new and improved tap' and reamer wrench, which is comparatively simple and durable in construction, and arranged to strengthen the handles, and to permit of conveniently opening and closing the jaws without the operator turning the handles.

The invention consists in certain parts and details, and combinations of the same, as will be hereinafter fully described and then pointed out in the claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts in all the views.

Figure l is a plan View of the improvement.

1 Fig. 2 is a sectional side elevation of the same,

on the line 2--2 of Fig. 1. Fig. 3 isa sectional side elevation of the sleeve. Fig. 4. is a sectional plan View of a modified form of the improvement; and Fig. 5 is a similar view of another modified form of the improvement.

The improved tap and reamer wrench is provided with the stock A, formed with the usual elongated opening A, in which is held the fixed jaw B and the movable jaw C. The ends of the stock A are formed with the necks A and A of which the former terminates in a handle D, forming an integral part of the neck A The other neck A is connected by a sleeve E with a second handle F, provided with a reduced portion forming a rod F, extending through the neck A and connected in any suitable manner with the movable jaw C. The sleeve E as illustrated in Figs. 1, 2 and 3 is formed with two internal screw threads E and E of which one is right-hand and the other left-hand,as plainlyillustrated in Fig. 3. The thread E screws on the threaded portion A of the neck A while the other thread E screws on the threaded part F of the handle F.

Now, it will be seen that when the operator turns the sleeve E in one direction the handle F will be moved bodily inward so as to impart by its rod F, an inward sliding motion to the movable jaw O, to move the latter in contact with the tap or 'reamer to be engaged by the wrench. When the sleeve E is turned in the oppositedirection the handle F will be moved bodily outward so as to impart an outward sliding motion to the movable jaw O, to disengage the jaws B and 0 from the tap or reamer.

It will be seen that by the construction described, the sleeve E connects the neck A with the handle F without weakening any of the parts; on the contrary making a strong connection between the neck and the handle, to prevent breaking of the parts in case the wrench undergoes a heavy strain. It will further be seen that the handle F does not turn, but is moved bodily longitudinally inward or outward, according to the direction in which the sleeve E is turned, so that the operator in manipulating the device can retain a firm hold of the handle F, while turning the sleeve E to open or close the movable jaw 0.

As illustrated in Fig. 4, the sleeve E is pro vided with a single internal thread E engaging a thread A formed exteriorly on the neck A of the stock A the outer end of the said sleeve E being mounted to turn on the handle F connected by the rod F with the movable jaw in the same manner asabove described in reference to Fig. 4.

In order to mount the sleeve E so as to turn on the handle F, I provide a collar or nut G, screwed on the reduced portion of the handle F inside ofthe outer end of the sleeve E Now, by turning this sleeve E in one direction it rotates on the handle F but screws on the thread A", to move the sleeve and handle inward and consequently the movable jaw 0 toward the fixed jaw B. By turning the sleeve in the opposite direction, the handle F is moved bodily outward to open the jaw 0.

As illustrated in Fig. 5, the sleeve E is mounted to turn on the neck A of the stock A", and is provided with an internal screw thread E engaging a screw thread F arranged described in reference to Fig. 1. A collar or nut G screws on the outer end of the neck A to hold the sleeve E in place and to permit the same to turn loosely on the neck A", without movinglongitudinally thereon. Now, it will be seen that by turning the sleeve E in one direction, the handle F", rod F and movable jaw O are moved inward to close the jaws, and by turning the sleeve E in the opposite direction the said parts move outward to open the jaws.

It is expressly understood that by the several constructions described, the handle connected with the movable jaw C does not turn, but is moved bodily inward or outward so as to open or close the jaws B and 0.

Having thus described my invention, I claim as new and desire tosecure by Letters Patent-=- 1. A tap and reamer wrench, comprising a stock having a threaded neck, a sleeve havinga double screw thread of which one screws on the said neck, a handle having a threaded end screwing in the other thread of the said sleeve, and a movable jaw held in the said ment with said neck, and having an extension passing through the neck of the stock, the extension having a movable jaw mating a jaw in the stock, and a joint adjustably uniting said neck and handle, and consisting of an external sleeve fitting over and adapted to r0- tate on both the neck and handle, and engaging both for moving them toward and from each other, substantially as described.

ELMER J. NICHOLS.

Witnesses:

CHARLES E. PERVEAR, HARRY S. JORDAN. 

